Wifi Calling with Unlocked Note 10+ (AT&T) - Samsung Galaxy Note 10 Questions & Answers

I'm not sure if this is supported, I can't seem to get much help from AT&T, but I purchased an unlocked Note 10+ from Samsung. I do not have WiFi Calling which is a crucial feature since my office has terrible reception and I use the phone for work.
Is this something I should be able to get working with help from my carrier or is this ROM/build specific? Any help would be appreciated, thanks!

rysal said:
I'm not sure if this is supported, I can't seem to get much help from AT&T, but I purchased an unlocked Note 10+ from Samsung. I do not have WiFi Calling which is a crucial feature since my office has terrible reception and I use the phone for work.
Is this something I should be able to get working with help from my carrier or is this ROM/build specific? Any help would be appreciated, thanks!
Click to expand...
Click to collapse
Along with one or two pros, I found this to be one of the cons in using an unlocked phone with Verizon a couple of years ago, along with no notifications. I spent countless hours over several days on the phone with Samsung and Verizon before finding out this was a known (by Samsung) issue. I returned mine and got the Verizon branded one. Things may have changed since then, but it cured me of the unlocked version, especially since contracts have fallen by the wayside. If they can't resolve the WiFi calling, Samsung should allow you to return it. I hope someone else has a solution for you.

Install the ATT rom using Odin

foeshigity said:
Install the ATT rom using Odin
Click to expand...
Click to collapse
Glad I read first, I'm going through the same thing right now. Just downloaded the firmware from Sammobile about to try and see.

rysal said:
I'm not sure if this is supported, I can't seem to get much help from AT&T, but I purchased an unlocked Note 10+ from Samsung. I do not have WiFi Calling which is a crucial feature since my office has terrible reception and I use the phone for work.
Is this something I should be able to get working with help from my carrier or is this ROM/build specific? Any help would be appreciated, thanks!
Click to expand...
Click to collapse
I Tried flashing the AT&T firmware N975U1UEU1ASH4 from Sammobile and sill no wifi calling.

I am in the same boat. Just out of curiosity what does the service provider SW ver. look like? Mine shows ATT/ATT/XAA
Still no wifi calling or carrier specific options...it's kind of strange that these phones provision the features when you put a sim card in.
I called both At&t and Samsung who were equally less than helpful.
I am looking back to some of the S8+ forums about CSC swapping because I feel like that might be a starting place...

TechGoon954 said:
I Tried flashing the AT&T firmware N975U1UEU1ASH4 from Sammobile and sill no wifi calling.
Click to expand...
Click to collapse
You downloaded N975U1 unlocked rom, it was still rom for unlocked note 10 not AT&T or variant note 10. If you want full AT&T features like wifi calling, video calling..you should download and odin this firmware N975USQU1ASH4 which is AT&T Variant N975U. I am still on unlocked Galaxy note 9 N960U1 and I odin Verizon note 9 SM-N960U on my unlocked Galaxy note 9. The ROM works with every carrier anyway.

rysal said:
I'm not sure if this is supported, I can't seem to get much help from AT&T, but I purchased an unlocked Note 10+ from Samsung. I do not have WiFi Calling which is a crucial feature since my office has terrible reception and I use the phone for work.
Is this something I should be able to get working with help from my carrier or is this ROM/build specific? Any help would be appreciated, thanks!
Click to expand...
Click to collapse
luckyfate said:
You downloaded N975U1 unlocked rom, it was still rom for unlocked note 10 not AT&T or variant note 10. If you want full AT&T features like wifi calling, video calling..you should download and odin this firmware N975USQU1ASH4 which is AT&T Variant N975U. I am still on unlocked Galaxy note 9 N960U1 and I odin Verizon note 9 SM-N960U on my unlocked Galaxy note 9. The ROM works with every carrier anyway.
Click to expand...
Click to collapse
Okay , I got my WIFI calling . This is the correct one to download and flash......... DO NOT Download the one that says AT&T it's going to just flash the same N975U1. Good luck:good:

I'm thinking about doing this. Will flashing the at&t firmware wipe the phone? Articles I've read says it doesn't. Is that correct?
---------- Post added at 10:04 PM ---------- Previous post was at 09:56 PM ----------
Also can someone confirm the correct at&t firmware for the Note 10? Also use the USA(USC) version?

TechGoon954 said:
Okay , I got my WIFI calling . This is the correct one to download and flash......... DO NOT Download the one that says AT&T it's going to just flash the same N975U1. Good luck:good:
Click to expand...
Click to collapse
Thank you! I was able to successfully flash with this ROM and now have the AT&T features I was missing!

What about for the regular Note 10? Is it N970USQU1ASH4 for the unlocked AT&T version?

I just flashed the regular Note 10. Still no wifi calling. In the Service Provider SW ver, it says ATT/ATT/XAA so I believe I've flashed the ATT firmware?
Baseband version
N970UIUEUIASH4
Service provider SW ver.
SAOMC SM-N970UI_OYM_ATT_PP_0030
R58M81758ZM
ATT/ATT/XAA

I just flashed to N970USQU1ASH4, and got the AT&T bloat and wifi calling, but theres no cellular service anymore. I tried flashing back, but now am getting a model mismatch error. I dont know what to do anymore.

Did you download from the sammobile site? Did you use the att or usc firmware?

rmrl2008 said:
Did you download from the sammobile site? Did you use the att or usc firmware?
Click to expand...
Click to collapse
I flashed N970USQU1ASH4_N970UOYN1ASH4_USC from sammobile.com

Hmm I did the same thing. I flashed both the att and usc firmwares. Odin said pass but I didn't see any difference. I used the home_csc file though. I didn't want to wipe my phone before knowing whether I used the right firmware.

I have an N970u1 but flashed it to the u version. Is that what you did?

Well my model number still says U1. So does that mean that me flashing both the USC and ATT firmwares did nothing?
---------- Post added at 08:15 PM ---------- Previous post was at 07:56 PM ----------
I understand what you're asking me now. No I used the u1 firmwares.
---------- Post added at 08:27 PM ---------- Previous post was at 08:15 PM ----------
Did you get your phone working? I'm hesitant to give the U firmware a try now.
---------- Post added at 08:48 PM ---------- Previous post was at 08:27 PM ----------
Reading another thread, did you first boot up with an att sim card before flashing? I believe you have to do that first.

Ota updates
Will the OTA updates work after flashing the att stuff? I know theres a new firmware but the phone is saying it's up to date.

I'm having a problem with this too. I flashed the USC version and got the ATT Bloat, but when I try to enable wifi calling I get "Oops! Wi-Fi Calling can't be turned on right now. Please call 611 or 800-901-9878 for assistance. (APP0008) Can anyone help?
Is it possible they are locking Wifi calling based on IEMI?

Related

How To flash N920P with international firmware version?

I'm trying to flash Sprints N920P with any international unbranded firmware. phone is rooted, TWRP already installed and OEM unlocked.
Tried to flash N920CXXU1AOI3_N920COXE1AOI3_SER with odin but failed.
could you please give me any advise? There should be a solution because its hardware is same for every region or carrier.
best regards,
Zaza
seeking for the same solutioN!
Not sure why you would want to do this. If you can get the phone unlocked then whats the point?
DarkManX4lf said:
Not sure why you would want to do this. If you can get the phone unlocked then whats the point?
Click to expand...
Click to collapse
my Galaxy Note 5 "SM-N920P" sprint version is unlocked.. i live in Bangladesh! your neighbour! i can use a local sim without any problem... but stil.. as i'm in asia.. shouldn't i be using an international rom??? plus... my theme store isn' working! when I long press in desktop and select themes.. nothing happens! maybe it's because i'm using that sprint version in asia! :/
sahed01 said:
my Galaxy Note 5 "SM-N920P" sprint version is unlocked.. i live in Bangladesh! your neighbour! i can use a local sim without any problem... but stil.. as i'm in asia.. shouldn't i be using an international rom??? plus... my theme store isn' working! when I long press in desktop and select themes.. nothing happens! maybe it's because i'm using that sprint version in asia! :/
Click to expand...
Click to collapse
Hmm not sure about the theme store but you don't need to use an international rom. You can use a Sprint rom. Although all Note 5's are essentially the same (there might be some variants with differences), the kernel might be different for each. I would stick with the Sprint rom. Maybe try some of the roms posted in the development section to see if the theme store would work on those roms.
DarkManX4lf said:
Hmm not sure about the theme store but you don't need to use an international rom. You can use a Sprint rom. Although all Note 5's are essentially the same (there might be some variants with differences), the kernel might be different for each. I would stick with the Sprint rom. Maybe try some of the roms posted in the development section to see if the theme store would work on those roms.
Click to expand...
Click to collapse
thanks for your response!
btw//.. i'm downloading this tom "http://forum.xda-developers.com/tmobile-galaxy-note5/development/rom-darthstalker-note5-version-1-aroma-t3212091" and there is a interesting thing i found here.. in the discreption section they said that
"DEVICE MODEL OPTIONS
- Now Users Can Choose Their Device's Phone Model Right From The Aroma Installer.
CSC CARRIER/REGION OPTIONS
- Now Users Can Choose Their Country Sales Code (CSC) Right From The Aroma Installer"
does that mean i can now change my unlocked "SM-N920P" "Sprint" to international "SM-N920I" wow.. that would be soooo cooollll!!!! :')
Please inform us if you will have success.
Regards,
Zaza
sahed01 said:
thanks for your response!
btw//.. i'm downloading this tom "http://forum.xda-developers.com/tmobile-galaxy-note5/development/rom-darthstalker-note5-version-1-aroma-t3212091" and there is a interesting thing i found here.. in the discreption section they said that
"DEVICE MODEL OPTIONS
- Now Users Can Choose Their Device's Phone Model Right From The Aroma Installer.
CSC CARRIER/REGION OPTIONS
- Now Users Can Choose Their Country Sales Code (CSC) Right From The Aroma Installer"
does that mean i can now change my unlocked "SM-N920P" "Sprint" to international "SM-N920I" wow.. that would be soooo cooollll!!!! :')
Click to expand...
Click to collapse
sahed01 said:
thanks for your response!
btw//.. i'm downloading this tom "http://forum.xda-developers.com/tmobile-galaxy-note5/development/rom-darthstalker-note5-version-1-aroma-t3212091" and there is a interesting thing i found here.. in the discreption section they said that
"DEVICE MODEL OPTIONS
- Now Users Can Choose Their Device's Phone Model Right From The Aroma Installer.
CSC CARRIER/REGION OPTIONS
- Now Users Can Choose Their Country Sales Code (CSC) Right From The Aroma Installer"
does that mean i can now change my unlocked "SM-N920P" "Sprint" to international "SM-N920I" wow.. that would be soooo cooollll!!!! :')
Click to expand...
Click to collapse
I am not quite sure. You are better off asking the question in thread for that ROM.
DarkManX4lf said:
I am not quite sure. You are better off asking the question in thread for that ROM.
Click to expand...
Click to collapse
i tried to flash "SM-N920I" in my phone with odin. but it fails every time! I guess that's obvious! :'(
anyway.. can you help me with kernel!? which should I be using for best result??
zazabichi said:
I'm trying to flash Sprints N920P with any international unbranded firmware. phone is rooted, TWRP already installed and OEM unlocked.
Tried to flash N920CXXU1AOI3_N920COXE1AOI3_SER with odin but failed.
could you please give me any advise? There should be a solution because its hardware is same for every region or carrier.
best regards,
Zaza
Click to expand...
Click to collapse
so this happened..
when i tried to change my unlocked "SM-N920P" "Sprint" to international "SM-N920I" is fails with odin.. no matter how hard i try.. then i flashed a custom rom from T-mobile thread drom here.. and i lost my imei .. then flashed another custom rom from sprint section.. and it came back to normal..
This site helps me out a lot when I run into trouble http://galaxynote5root.com/note-5-stock-firmwares/
sahed01 said:
so this happened..
when i tried to change my unlocked "SM-N920P" "Sprint" to international "SM-N920I" is fails with odin.. no matter how hard i try.. then i flashed a custom rom from T-mobile thread drom here.. and i lost my imei .. then flashed another custom rom from sprint section.. and it came back to normal..
Click to expand...
Click to collapse
So it means now you have Stock T-mobile firmware?
Could you please provide us screenshot of firmware versions and a link to this T-mobile Rom thread?
Cheers,
Zaza
zazabichi said:
So it means now you have Stock T-mobile firmware?
Could you please provide us screenshot of firmware versions and a link to this T-mobile Rom thread?
Cheers,
Zaza
Click to expand...
Click to collapse
nope. i have flashed "sprint" custom rom!
Thing about sprint is...it has its own network. So unlocking it is not the same as tmobile and other networks. Example 1, sprint unlocked only works on sprinit network and other networks by sprint. Example 2, any other company, tmobile, verizion, unlocked can work with a different sim card, internationally. If you put a different sim card in the sprint phone it wont work for some reason, but any nonesprint phone it does if unlocked
This is not true. The N920P can be unlocked and used on domestic GSM carriers. I'm currently using the N920P on straight talk (ATT) with LTE on stock/rooted rom.
Hey insane howd you get 4g? On att?and are there any good roms for sprint note 5 with att
insanecain said:
This is not true. The N920P can be unlocked and used on domestic GSM carriers. I'm currently using the N920P on straight talk (ATT) with LTE on stock/rooted rom.
Click to expand...
Click to collapse
Tell please how you did it
You should just flash a rom with custom recovery. odin to hit or miss for me unless I'm going complete stock
insanecain said:
This is not true. The N920P can be unlocked and used on domestic GSM carriers. I'm currently using the N920P on straight talk (ATT) with LTE on stock/rooted rom.
Click to expand...
Click to collapse
How you did it?
I used idoneapps for the unlock (works great, kudos to those guys) .You will have to make NV changes for LTE (directions are on this site). You also need two APN's (one with LTE as bearer). Network Mode needs to be GSM/WCDMA/LTE. Handcent with manual APN for MMS keeps from having to reboot nearly everytime you receive an MMS as well.
---------- Post added at 09:01 AM ---------- Previous post was at 08:44 AM ----------
NV edits can be found http://forum.xda-developers.com/showpost.php?p=56577252&postcount=455 . You do not need the storage patch for this device, obviously.

G930T1 Metro PCs can it be flashed with G930T Firmware?

Hi fellas, so i got a Metro Pcs GS7, but i'm kind of obsessive and it bothers me a lot having a device not meant for my carrier (T-Mobile), tried to flash T-Mobile G930T Firmware via odin, but it gave me an error at the end, so i flashed back G930T1 flash, any suggestions?
Appreciated!
Always could with any other Samsung' between the 2 carriers
Except that the locked bootloader on both carriers devices may cause a issue if you Odin one or the other .Its worth a try all it will do is fail if not .But i did this on metro s5 s4 and s6
Sent from my Nexus 6 using XDA Free mobile app
It should work with no problems. I had a Sprint S7 and flashed T-mobile firmware to use on TMO and its been working great. All the US S7's are pretty much all the same except for the firmwares. So they should be fine.
Yes you can ... i have done couple with no issue make sure to check your download it might be bad ...
How did you do it cause there's no working T-Mobile firmware online right now all of them give you an error message.
JUSMEJOSE said:
Yes you can ... i have done couple with no issue make sure to check your download it might be bad ...
Click to expand...
Click to collapse
Can you please provide a link to the firmware you used to flash the s7 please? Thanks?
Sent from my SM-G930T1 using XDA-Developers mobile app
stylin350 said:
It should work with no problems. I had a Sprint S7 and flashed T-mobile firmware to use on TMO and its been working great. All the US S7's are pretty much all the same except for the firmwares. So they should be fine.
Click to expand...
Click to collapse
In the USA, the European version has a Exynos SOC.
Sent from my SM-G930T using Tapatalk
JUSMEJOSE said:
Yes you can ... i have done couple with no issue make sure to check your download it might be bad ...
Click to expand...
Click to collapse
Can you provide with link to firmware that you use?
Sent from my SM-G930T1 using XDA-Developers mobile app
romeodeed said:
How did you do it cause there's no working T-Mobile firmware online right now all of them give you an error message.
Click to expand...
Click to collapse
Try this one:
https://www.dropbox.com/s/gvi7ihtmfej7ke6/G930TUVS2APB8_Stock.rar?dl=0
I just flashed my Metro S7 with this Tmobile flash and it worked,
Odin BL,AP,CP, and CSC and Voila!!!!!
I went to best buy the Samsung rep did it for me, I tried to do it like I did with my s5,s6 from Metro and the file was corrupted
So ifi flash this on my metro phone, will a metro unlock via unlock all carry over to the T-Mobile version? Will it get T-Mobile update?
Atrix_Lover said:
Hi fellas, so i got a Metro Pcs GS7, but i'm kind of obsessive and it bothers me a lot having a device not meant for my carrier (T-Mobile), tried to flash T-Mobile G930T Firmware via odin, but it gave me an error at the end, so i flashed back G930T1 flash, any suggestions?
Appreciated!
Click to expand...
Click to collapse
hey my friend i had no trouble flashing tmobile firmware, but when i did i had trouble unlocking afterwards, could you send me a link to the metro pcs firmware, i would gladly send you a link for the tmobile, im uploading the file to my google drive account as i text this, its about 4gb , so will take a couple hours to upload
It works like a charm. I think it even unlocked the phone? My phone accepts T-Mobile sims without issue.
romeodeed said:
How did you do it cause there's no working T-Mobile firmware online right now all of them give you an error message.
Click to expand...
Click to collapse
I used the method on galaxy7root.com . At the top of the page click root Qualcomm and everything you need is there.
---------- Post added at 08:19 PM ---------- Previous post was at 08:15 PM ----------
Commented on the wrong post sorry
How can I flash the G930U firmware onto the G930T? Is it possible? I'm sorry, I've been out of the scene for a while.
Is it really worth rooting my phone to flash the T-Mobile ROM to get faster updates and have advanced messaging?
Atrix_Lover said:
Hi fellas, so i got a Metro Pcs GS7, but i'm kind of obsessive and it bothers me a lot having a device not meant for my carrier (T-Mobile), tried to flash T-Mobile G930T Firmware via odin, but it gave me an error at the end, so i flashed back G930T1 flash, any suggestions?
Appreciated!
Click to expand...
Click to collapse
change the sales code to metro..then it should work fine
stillwiggin said:
change the sales code to metro..then it should work fine
Click to expand...
Click to collapse
How do you change the sales code, I'm getting ready to do this right now actually. Tired of the boring MetroPCS **** lol
G930T1 Metro
Please tell me how I can put the Russian language G930T1 Metro

Best CVC (via Odin) for S8+ G955F international Version for use in the US

Which CVC version from which country would you recommend to use on the S8+ G955F international version for use with the US carriers?
If possible enabling VoLTE and WiFi Calling.
Using Odin only, NO root, to not trigger Knox.
I've been installing XAA/XAA on my families, friends and my phone/s. ROM is CarHDROM v9. This ROM is a NOTE 8 ROM.
Make sure your CSC is compatible with the 'model' ROM you have on the phone, and not necessarily the stock hardware 'model' of the phone.
JeffDC said:
I've been installing XAA/XAA on my families, friends and my phone/s. ROM is CarHDROM v9. This ROM is a NOTE 8 ROM.
Make sure your CSC is compatible with the 'model' ROM you have on the phone, and not necessarily the stock hardware 'model' of the phone.
Click to expand...
Click to collapse
Thank you. Do you remember if XAA is giving you VoLTE and/or WiFi Calling? Independently from the features of the ROM you mentioned.
Sorry posting didn't work earlier.
Sorry posting didn't work earlier.
TGSKK said:
Thank you. Do you remember if XAA is giving you VoLTE and/or WiFi Calling? Independently from the features of the ROM you mentioned.
Click to expand...
Click to collapse
VoLTE and Wifi calling show up as Blue (available-enabled), though I have never tried to use either. I live in an area where internet service is about 4-5 mbs, and cell service just gets to a few, 3G bars. In town the data is 4G and great, though I always just call directly.
---------- Post added at 01:44 AM ---------- Previous post was at 01:40 AM ----------
TGSKK said:
Which CVC version from which country would you recommend to use on the S8+ G955F international version for use with the US carriers?
If possible enabling VoLTE and WiFi Calling.
Using Odin only, NO root, to not trigger Knox.
Click to expand...
Click to collapse
On an international phone I think you can flash CSC without triggering Knox . . . ?
I found XAA/XAA works great. I have tried out the XAA/AT&T, T-Mobile, Verizon and Sprint CSC's, within the main XAA, but AT&T, et al comes with bloatware the respective boot logos. I have a Note 8 custom ROM, so I have to use a CSC for a Note 8 phone.
Using the XAA/XAA unbranded carrier, no bloatware, and all GSM phones, 7's and 8's, have worked just fine.
---------- Post added at 01:45 AM ---------- Previous post was at 01:44 AM ----------
I don't know whats going on with posting this weekend... very slow for the replies to post 'up'
---------- Post added at 01:49 AM ---------- Previous post was at 01:45 AM ----------
TGSKK said:
Thank you. Do you remember if XAA is giving you VoLTE and/or WiFi Calling? Independently from the features of the ROM you mentioned.
Click to expand...
Click to collapse
I don't know if it is 'independent' from the ROM I'm using, I just know they show up blue/enabled. Never tried them.
The ROM is a ported Note 8 'F' ROM.

//G965U TMB\\ Stock Odin Files Firmware G965USQU2ARC6

Stock Oreo G965USQU2ARC6 Odin files for T-Mobile S9+
***WARNING, CONTAINS BOOTLOADER V2. ONCE YOU FLASH, YOU WILL NOT BE ABLE TO DOWNGRADE TO ANY FIRMWARE CONTAINING BOOTLOADER V1. YOU'VE BEEN WARNED***
Model: SM-G965U
Model Name: Galaxy S9+
Country: USA
Version: Android Oreo 8.0
Security Patch Level: March 1st, 2018
Product Code: TMB
PDA: G965USQU2ARC6
CSC: G965UOYN2ARC6
Download here: G965USQU2ARC6
DOWNLOAD for ODIN:
ODIN v3.13.1
Hola
Can you say how would we know if we're on v1 of the bootloader?
QAM said:
Hola
Can you say how would we know if we're on v1 of the bootloader?
Click to expand...
Click to collapse
What's the build number on your device? It would be under settings in about phone.
Hola
I should state that I'm up in Canada, so we're using a different set of regional codes. Nevertheless the latest avialable build I see is: G965WOYV1ARC1 (I have no idea what security level this is). My carrier is still on a February security patch level with build number: G965WVLU1ARBG.
QAM said:
Hola
I should state that I'm up in Canada, so we're using a different set of regional codes. Nevertheless the latest avialable build I see is: G965WOYV1ARC1 (I have no idea what security level this is). My carrier is still on a February security patch level with build number: G965WVLU1ARBG.
Click to expand...
Click to collapse
ARC1 is still the Feb security patch and is firmware for koodo and telus in canada, rogers and the rest are still on arbg.
Iain_S said:
ARC1 is still the Feb security patch and is firmware for koodo and telus in canada, rogers and the rest are still on arbg.
Click to expand...
Click to collapse
Hola
Ok, but that still doesn't explain how can one know if we're on the v1 or v2 bootloader? Or is this bootloader versioning only applicable to the US region?
are there any issues with ARC6? if not i will take the plunge on my Canadian S9+
---------- Post added at 12:59 AM ---------- Previous post was at 12:54 AM ----------
QAM said:
Hola
Ok, but that still doesn't explain how can one know if we're on the v1 or v2 bootloader? Or is this bootloader versioning only applicable to the US region?
Click to expand...
Click to collapse
yeah i dont know how to tell which bootloader is on the canadian versions compared to the usa versions.
QAM said:
Hola
I should state that I'm up in Canada, so we're using a different set of regional codes. Nevertheless the latest avialable build I see is: G965WOYV1ARC1 (I have no idea what security level this is). My carrier is still on a February security patch level with build number: G965WVLU1ARBG.
Click to expand...
Click to collapse
You're on bootloader v1. The (1) before ARBG is the bootloader version.
Iain_S said:
are there any issues with ARC6? if not i will take the plunge on my Canadian S9+
---------- Post added at 12:59 AM ---------- Previous post was at 12:54 AM ----------
yeah i dont know how to tell which bootloader is on the canadian versions compared to the usa versions.
Click to expand...
Click to collapse
Hola
I would be very careful in attempting to load another regions firmware on your Canadian variant. There have be some users who have reported ending up with a bricked device attempting this sort of update. While you can find stock Odin files for our devices, it's still on the v1 bootloader. Not worth the pain...
Iain_S said:
are there any issues with ARC6? if not i will take the plunge on my Canadian S9+
---------- Post added at 12:59 AM ---------- Previous post was at 12:54 AM ----------
yeah i dont know how to tell which bootloader is on the canadian versions compared to the usa versions.
Click to expand...
Click to collapse
Let me know if you successfully flash on your device then I'll do it as I'm from Bell mobility
I got the downloads to go through. Will report once flashing is complete. Not sure which firmware will be on the phone when it arrives (att variant) but I'm gonna be flashing u1 then newest rc6 TMobile firmware. Hoping to have full features working as if originally a TMobile variant.
On a side note (mods please excuse) but Samsung. Com has the att variant on sale $639 ($200 off) and since I'm trading in my old s7 I'm getting an additional $200 off so $439 ($466 after tax) for a brand new s9+! Once i flash the TMobile firmware I'll be happy and for $400 off!
Anyone know if i need to sim unlock before flashing this? I've read about having to flash the unlocked rom before flashing the T-Mobile Rom and that's my other question. Can i just flash this tmobile firmware to the phone fresh out of the box or do i need to go to unlocked first (doesn't seem right) and put my TMobile sim in and be good?
My thoughts were that i could just sim unlock thorough a 3rd party then Odin the TMobile firmware and be done. Thanks
dannyHD2 said:
Anyone know if i need to sim unlock before flashing this? I've read about having to flash the unlocked rom before flashing the T-Mobile Rom and that's my other question. Can i just flash this tmobile firmware to the phone fresh out of the box or do i need to go to unlocked first (doesn't seem right) and put my TMobile sim in and be good?
My thoughts were that i could just sim unlock thorough a 3rd party then Odin the TMobile firmware and be done. Thanks
Click to expand...
Click to collapse
You have to unlock your device first, before flashing any other firmware besides your carrier firmware. Flashing unlock firmware, will not unlock your device.
dannyHD2 said:
Anyone know if i need to sim unlock before flashing this? I've read about having to flash the unlocked rom before flashing the T-Mobile Rom and that's my other question. Can i just flash this tmobile firmware to the phone fresh out of the box or do i need to go to unlocked first (doesn't seem right) and put my TMobile sim in and be good?
My thoughts were that i could just sim unlock thorough a 3rd party then Odin the TMobile firmware and be done. Thanks
Click to expand...
Click to collapse
SIM unlock has nothing to do with firmware/rom flashing. You can flash to any U/U1 firmware you want and your device will still be in the same carrier lock/unlock state it was before.
T-Mobile does do things a little differently, however. Flashing a different firmware won't SIM unlock your phone, but I do believe you need to be on a legitimate T-Mobile firmware to unlock the device via their built in unlocking app.
Awesome thanks guys. Will just get a 3rd party unlock service then flash.
If you got it from [email protected] they will unlock it free of charge. And if you didn't I would still try with them first before paying
Will use it to update my converted s9 plus from att to tmobile firmware.
I tried to search for updates in the menu but it says phone is already up to date. But version is RBG.
Latest one is ARC6
dannyHD2 said:
Awesome thanks guys. Will just get a 3rd party unlock service then flash.
Click to expand...
Click to collapse
lethalboy said:
Will use it to update my converted s9 plus from att to tmobile firmware.
I tried to search for updates in the menu but it says phone is already up to date. But version is RBG.
Latest one is ARC6
Click to expand...
Click to collapse
Did either of you do it yet? I'm in the same boat, just got my AT&T that I want to use on T-Mobile. I'm debating if I should flash unlocked or T-Mobile, and now the option of this new bootloader?
theredspecial said:
Did either of you do it yet? I'm in the same boat, just got my AT&T that I want to use on T-Mobile. I'm debating if I should flash unlocked or T-Mobile, and now the option of this new bootloader?
Click to expand...
Click to collapse
Im just waiting for Rogers in Canada to push out their latest update, which they say is now available, and its not. I want to see if they have updated from U1 to U2 before taking the plunge with this firmware.
What's the benefit to having T-Mobile f/w over unlocked? Or what's better about having unlocked? I'll be using it only on T-Mobile.

Reflash AT&T 20 Ultra to Unlocked Firmware?

I've looked through threads of people doing the reverse of this. It's been a few years since I've had an android and was running nexus devices then. What's the process to flash an unlocked firmware on an AT&T locked 968U to the 968U1 firmware (assuming there aren't issues doing it)?
Are there any other pitfalls I need to be aware of prior to doing it other than the wifi calling?
If this is already posted somewhere else, please feel free to point me there. I didn't see any info about going from a carrier locked 968U to unlocked firmware.
Thanks in advance.
viperhrdtp said:
I've looked through threads of people doing the reverse of this. It's been a few years since I've had an android and was running nexus devices then. What's the process to flash an unlocked firmware on an AT&T locked 968U to the 968U1 firmware (assuming there aren't issues doing it)?
Are there any other pitfalls I need to be aware of prior to doing it other than the wifi calling?
If this is already posted somewhere else, please feel free to point me there. I didn't see any info about going from a carrier locked 968U to unlocked firmware.
Thanks in advance.
Click to expand...
Click to collapse
https://forum.xda-developers.com/galaxy-note-20-ultra/how-to/ota-ota-firmware-n986u-t4143833/page71
I have done this and I lost WIFI calling and VOLTE. I'm very happy with it so far.
viperhrdtp said:
I've looked through threads of people doing the reverse of this. It's been a few years since I've had an android and was running nexus devices then. What's the process to flash an unlocked firmware on an AT&T locked 968U to the 968U1 firmware (assuming there aren't issues doing it)?
Are there any other pitfalls I need to be aware of prior to doing it other than the wifi calling?
If this is already posted somewhere else, please feel free to point me there. I didn't see any info about going from a carrier locked 968U to unlocked firmware.
Thanks in advance.
Click to expand...
Click to collapse
I just did this today went from TMB locked one to unlocked (For a family member) mine is unlocked. All went well no problems at all. Just download the U1 Firmware you want to flash and for CSC use home_csc (In ODin) so you can keep your data and probably the wifi calling feature too ( i did that all features are intact). Use the Odin and firmware from Ota and non Ota thread . Enjoy
ahenderson223 said:
https://forum.xda-developers.com/galaxy-note-20-ultra/how-to/ota-ota-firmware-n986u-t4143833/page71
I have done this and I lost WIFI calling and VOLTE. I'm very happy with it so far.
Click to expand...
Click to collapse
What did you gain that made it worth it for you? Also, I'm on a Locked ATT/Firstnet Ultra and am wondering if flashing to an Unlocked Firmware would give me more control of my device.
that1guyty said:
What did you gain that made it worth it for you? Also, I'm on a Locked ATT/Firstnet Ultra and am wondering if flashing to an Unlocked Firmware would give me more control of my device.
Click to expand...
Click to collapse
If your on FirstNet I recommend that you stay on ATT branded software, I'm not sure if band 14 will work properly for you if you are on unlocked software. Thank you for your service!
ahenderson223 said:
https://forum.xda-developers.com/galaxy-note-20-ultra/how-to/ota-ota-firmware-n986u-t4143833/page71
I have done this and I lost WIFI calling and VOLTE. I'm very happy with it so far.
Click to expand...
Click to collapse
You can get VoLTE back, but yeah, WiFi calling is not gonna happen.
https://forum.xda-developers.com/ga...to/how-to-activate-video-calling-lte-t4178819
The thread is for T-Mobile, but most of it works with AT&T devices as well.
rjohnstone said:
You can get VoLTE back, but yeah, WiFi calling is not gonna happen.
https://forum.xda-developers.com/ga...to/how-to-activate-video-calling-lte-t4178819
The thread is for T-Mobile, but most of it works with AT&T devices as well.
Click to expand...
Click to collapse
I flashed the U1 firmware (ATJ3) onto my AT&T Note Ultra, then flashed the Home CSC from the AT&T U firmware. I have VoLTE and WiFi calling.
Help!
Hello all, I have a Note 20 Ultra 5g that is unlocked and I'm looking to flash the original ATT firmware for this device.
Having this unlocked version on Firstnet has been nothing but problems and I don't have access to band 14 or wifi calling.
I see this thread is a little old but if anyone could help me out or send me in the right direction I would greatly appreciate it!
I have rooted some of my older phones several several years ago so I think I could pick this back up pretty quickly. I know over the years things seem to get easier and have probably changed quite a bit since I've last done something like this.
Thanks in advance!
droppinbaums said:
I flashed the U1 firmware (ATJ3) onto my AT&T Note Ultra, then flashed the Home CSC from the AT&T U firmware. I have VoLTE and WiFi calling.
Click to expand...
Click to collapse
My comment was made before we were able to change IMS settings directly.
You can get it all now. VoLTE, WiFI Calling, RCS, Video calling...
Verntd3 said:
Help!
Hello all, I have a Note 20 Ultra 5g that is unlocked and I'm looking to flash the original ATT firmware for this device.
Having this unlocked version on Firstnet has been nothing but problems and I don't have access to band 14 or wifi calling.
I see this thread is a little old but if anyone could help me out or send me in the right direction I would greatly appreciate it!
I have rooted some of my older phones several several years ago so I think I could pick this back up pretty quickly. I know over the years things seem to get easier and have probably changed quite a bit since I've last done something like this.
Thanks in advance!
Click to expand...
Click to collapse
AT&T hasn't released any "official" firmware for the Note 20 series.
Since Samsung firmware is multi CSC, just flash any firmware with the same build number as the AT&T variant and use your AT&T SIM card.
Go to this thread https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/
Make sure you know what device you have, U or U1. Then grab the appropriate version.
Fir AT&T U devices, N986USQU2DUCA or N986USQU2DUCA will work.
For AT&T U1 devices, N986U1UEU2DUCB is the most recent version.
rjohnstone said:
AT&T hasn't released any "official" firmware for the Note 20 series.
Since Samsung firmware is multi CSC, just flash any firmware with the same build number as the AT&T variant and use your AT&T SIM card.
Go to this thread https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/
Make sure you know what device you have, U or U1. Then grab the appropriate version.
Fir AT&T U devices, N986USQU2DUCA or N986USQU2DUCA will work.
For AT&T U1 devices, N986U1UEU2DUCB is the most recent version.
Click to expand...
Click to collapse
Ok thanks, according to this I assume I have the U1....?
Verntd3 said:
Ok thanks, according to this I assume I have the U1....?
Click to expand...
Click to collapse
Yes, based on screenshot, you have U1
warriorvibhu said:
I just did this today went from TMB locked one to unlocked (For a family member) mine is unlocked. All went well no problems at all. Just download the U1 Firmware you want to flash and for CSC use home_csc (In ODin) so you can keep your data and probably the wifi calling feature too ( i did that all features are intact). Use the Odin and firmware from Ota and non Ota thread . Enjoy
Click to expand...
Click to collapse
So i can flash rom n986u1 on N986u ?
romano_ezzat said:
So i can flash rom n986u1 on N986u ?
Click to expand...
Click to collapse
Yes you can, please look for instructions I have posted instruction on this device forum to go from U to U1 and vice versa

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